I have a GeForce 750 Ti card and I'm having issues with stability and features with the nouveau driver on Fedora 23. Per lspci, I have
NVIDIA Corporation GM107 [GeForce GTX 750 Ti] (rev a2) and kernel 4.6.4-201.fc23.x86_64. It appears that I'm running into the same (or a similar) issue as here: https://bugs.freedesktop.org/show_bug.cgi?id=95251 I can get it to work on each output port (DisplayPort, HDMI, and DVI) and I'm driving all three monitors simultaneously. However vdpauinfo shows that none of the hardware acceleration is working: Decoder capabilities: name level macbs width height ---------------------------------------------------- MPEG1 --- not supported --- MPEG2_SIMPLE --- not supported --- MPEG2_MAIN --- not supported --- [ etc etc ] When I start X I do see this message: [ 26.829] (II) modeset(0): [DRI2] VDPAU driver: nouveau but I also see this repeated a few times: [ 26.355] (EE) Unknown chipset: NV117 I'm getting conflicting messages from Freedesktop.org about whether this should work at all, so I can't tell if this is an upstream issue or a Fedora issue. I have a 750 Ti, which per https://nouveau.freedesktop.org/wiki/CodeNames/#NV110 is the Maxwell chipset NV117 with the GM107 chipset. The video acceleration matrix https://nouveau.freedesktop.org/wiki/VideoAcceleration/ seems to indicate that this is VP6, and everything is TODO. However the main Nouveau wiki page at https://nouveau.freedesktop.org/wiki/ has this entry: * Apr, 2015: GM107 acceleration support merged into 4.1 and https://www.phoronix.com/scan.php?page=news_item&px=GTX-750-Nouveau-Linux-4.1-Try indicates that as of 4.1 acceleration should start to work. I'm on kernel 4.6.4. Can anyone help me understand whether VDPAU is even supported on my hardware/kernel/driver combination, and if so, what I need to do to get it to work? Thanks, -jdm
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